Answer:
Option C is the correct answer.
Step-by-step explanation:
A parabola is the set of all points that is equal distance from focus and directrix.
We know that focus is a point and directrix is a line.
Option A:
A parabola is the set of all points that are the same distance from two lines.
Option A is wrong.
Option B:
A parabola is the set of all points that are the same distance from one point.
Option B is wrong.
Option C:
A parabola is the set of all points that are the same distance from a point and a line.
Option C is correct.
Option D:
A parabola is the set of all points that are the same distance from two points.
Option D is wrong.
So, Option C is the correct answer.
